The Germans didn't believe anyone so resourceful could be so feminine

Do we make 'em like this anymore? You be the judge.

Her story gives us pause:

Her fearlessness seemed to come from a total lack of self-doubt. The certainty with which she held her beliefs—she hated the Nazis, having seen them whipping Jews in Vienna before the war, loved France and was intensely loyal to Britain—freed her of any sense of guilt. This in turn enabled her to act as though she were utterly innocent, even when claiming to be the cousin of an imprisoned Scottish captain, or chatting to a Gestapo officer with 200lb of illegal pork in her suitcase.

It was sheer guts, though, that got her over the Pyrenees in her espradilles when the Germans were at her heels. And back in Britain in 1943 it was her character rather than her skills or physical abilities that got her through her training in grenade throwing, silent killing and parachute jumping. As for violence, she hated it—until she became hardened.

Sheer guts and character.

...then there's Paris.